Q. Type the missing number in this sequence:9, _, 17, 21, 25
Identify Pattern: First, let's try to identify a pattern in the given sequence. We can do this by looking at the differences between the numbers that are given. Since we have a missing number, we will start by finding the difference between the numbers after the missing one.Calculation: 21−17=4, 25−21=4
Calculate Differences: From the above step, we can see that the difference between each pair of consecutive numbers provided is 4. This suggests that the sequence is an arithmetic sequence with a common difference of 4.
Find Missing Number: To find the missing number, we can subtract the common difference from the number after it in the sequence.Calculation: 17−4=13
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